Reverse Osmosis Membranes
- Reverse Osmosis Membranes for Home Use
- Commercial/Industrial Thin Film Reverse Osmosis Membranes
- Low Energy (LE) RO Membranes
- Extra-Low Energy (XLE) RO Membranes
- Brackish Water (FRP Wrapped) Membranes
- Low Energy Brackish RO Membrane Elements
- Extra-Low Energy Brackish RO Membrane Elements
- CTA RO Membranes for Home Reverse Osmosis
- CTA Commercial/Industrial RO Membranes
- Reverse Osmosis Membranes for Seawater Desalination
- Nanofiltration Membrane Elements
- Ultrafiltration Membranes (UF Membranes)
- Microfiltration Membranes
- Special Application Membrane Elements
- Private Label Membranes
FILMTEC (DOW) Membranes
- FilmTec Membranes Residential/Home RO Membranes
- Tapwater Commercial RO Membranes (Tape Wrapped)
- Brackish Water Commercial RO Membranes (FRP Wrapped)
- Tap/Brackish Water Industrial FilmTec Membranes
- FilmTec Seawater Membrane Elements
- FilmTec Sanitary and Full-Fit Membrane Elements
- FilmTec Nanofiltration Membrane Elements
- FilmTec Hollow Fiber Ultrafiltration Membrane Modules
- Hydranautics ESPA Series Membranes
- Hydranautics CPA Series Membranes
- Hydranautics LFC Series Low Fouling Membranes
- Hydranautics Seawater SWC Series Membranes
- Hydranautics ESNA Series Nanofiltration Membranes
- Hydranautics HYDRAcap Series Ultrafiltration Membranes
- Hydranautics SanRO Series Sanitary Membranes
- Toray Membranes
- Inge Hollow Fiber UF Membranes
- Koch Fluid Systems Membrane Elements
- Replacement Membranes for Other Manufacturers
Ultrafiltration Membranes (UF Membranes)
Ultrafiltration (UF) is a separation process using membranes with pore sizes in the range of 0.1 to 0.001 micron. Typically, UF membranes will remove high molecular-weight substances, colloidal materials, and organic and inorganic polymeric molecules. Low molecular-weight organics and ions such as sodium, calcium, magnesium chloride, and sulfate are not removed by UF Membranes. Because only high-molecular weight species are removed, the osmotic pressure differential across the UF Membrane surface is negligible. Low applied pressures are therefore sufficient to achieve high flux rates from an Ultrafiltration membrane. Flux of a membrane is defined as the amount of permeate produced per unit area of membrane surface per unit time. Generally flux is expressed as gallons per square foot per day (GFD) or as cubic meters per square meters per day.
Ultrafiltration UF membranes can have extremely high fluxes but in most practical applications the flux varies between 50 and 200 GFD at an operating pressure of about 50 psig in contrast, reverse osmosis membranes only produce between 10 to 30 GFD at 200 to 400 psi.
To view the rest of this article on Ultrafiltration, please visit About Ultrafiltration.
Applied Membranes manufactures Ultrafiltration Membranes in a variety of materials for many applications. Please choose a membrane type below for more information on our UF Membranes.Purchase Now » Request A Quote »
Hollow Fiber Ultrafiltration Membrane Elements
AMI® hollow fiber ultrafiltration (UF) elements provide reliable rejection of microorganisms and viruses with low operating costs.
Polyacrylonitrile Ultrafiltration Membranes
AMI® polyacrylonitrile spiral wound ultrafiltration elements provide high performance with a molecular weight cut-off of 20,000.
PVDF Electrocoat Ultrafiltration Membranes
AMI® polyvinylidine fluoride spiral wound ultrafiltration elements provide high performance and rejection of electrodeposition paint solids.
Polyethersulfone Ultrafiltration Membranes
AMI® polyethersulfone spiral wound ultrafiltration elements provide removal of fine particles from aqueous solutions to a molecular weight cut-off of 10,000.